Deborah El-SayedDirector of Digital & Multi-channel DevelopmentNHS England

Innovators Early Adopters

Early Majority

Late Majority Laggards

People demanding proof

Stage 1Technical:• Privacy, Accessibility, Technical

stability, InteroperabilitySafety:• Reliability of content used• Algorithm/ calculationsUsability:• Usability best practiceStage 2

Stage 3 Impact / value:• Clinical safety• Reach: usage, access• Impact:

o Effectivenesso Cost savingo Patient factors

Stage 4

Self assessment + some external validation

Community validation

Business case for Stage 4

Independentevaluation

APP

APP

APP

APPGuide on

how to generate

evidence for digital